Read projects, inspections, issues, incidents, permits and site sign-ins in HammerTech. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the HammerTech connector, then ask in plain words. The AI picks the tools.
For construction safety and site teams that review inspections, issues and incidents in HammerTech.
List the projects with their state, country and dates. List the locations of one project to see its area names.
List the issues to read the priority, status and due date of each one. Select the fields you need, and read the next page while more results exist.
List the inspections with their completion date and count of open issues. Count the completed inspections for one month.
List the incident reports with their date, type, near-miss flag and status. List the permits with their type, status and times.
The login page asks for your HammerTech tenant, Region and HammerTech API key.
Create the key in HammerTech → My Account → API Keys (company admin rights needed). The tenant is the part of your URL before .hammertechonline.com. Your key is used only to call the Reporting API on your behalf and to derive a private account id; it is never shown to anyone.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"hammertech": {
"url": "https://hammertech.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"hammertech": {
"type": "http",
"url": "https://hammertech.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your HammerTech tenant, Region and HammerTech API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per user | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this HammerTech server only. Ask your AI to run hammertech_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with hammertech_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with hammertech_upgrade before then undoes the cancel. Or write to [email protected].
hammertech_list_projectshammertech_list_locationshammertech_list_attendeeshammertech_list_inspectionshammertech_list_observationshammertech_list_issueshammertech_list_incidentshammertech_list_injurieshammertech_list_permitshammertech_list_site_sign_inshammertech_usage_statushammertech_request_featurehammertech_upgradehammertech_cancel_subscriptionList projects and their locations. Review issues and their due dates. Count inspections and their open issues. Review incident reports and permits. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by HammerTech. The server calls the HammerTech API with your own HammerTech access, so it sees only the data that your account can see.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
The login page asks for your HammerTech tenant, Region and HammerTech API key. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your HammerTech tenant, Region and HammerTech API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the HammerTech API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in HammerTech.
All 10 HammerTech tools are marked read-only.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this HammerTech server only. Cancel any time: your paid plan then runs to the end of the paid period. Run hammertech_usage_status to see how many calls you used.
Ask the AI to run hammertech_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run hammertech_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with hammertech_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.